Adjustable door control



H. G. VOIGHT.

ADJUSTABLE DOQR CONTROL. APPLICATION FILED SEPT. I2, I92I.

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@I @y )4 (2 (D HENRY G. VOIGHT, OF NEVI HAVEN, CONNECTICUT.

ABJUSTABLE DOOR CONTROL.

Application filed September 12, 19221.

l'e it known that l. llnNnY G. Voioirr, a citizen of the 'United States ot America. resic at New laven, Connecticut, have inrentcd a new and useful iidjustable .Door Control. oi: which the following is a specilication.

lily invention relates to a door control and is particularly adapted for the actuation ot multiple sliding door. including one socalled tast door and one or more .so-called slow doors. such as are con'imonly used for elevator shafts. i

A comin-oa type ot' sliding door control consists of a link pivoted to the slow door and a link pivoted to the tast door and to one end ol2 the slow door link. The other end oit the slow door irik is 'pivoted to a third iiok at one end.y while the other end ot this third link is pivoted to a wall or similar support. This .system of linkage forms a type of toggle mechanism wherebyi when the toggle is broken, the two doors are actuated. il. spring oiosor and check is usually, though not alwaysy provided with such mechanism.

YWith such door control mechanism it is in many cas-es necessary tf1-specially design the control mechanism for each separate door and door opening. rile actual door opening etten varies, due to variations in individnal workmanship on the building. Likewise7 the distance from the door opening to the abutment for the toggle mechanism varies. it is obvious that with the toggle mechanism in its straightened out or rigid position and the liked end oic the toggle pivoted to the wall. unless the toggle mechanism is designed tor the particailar door opening, the door .iay not be able to reach its coni- ;)leteiv cl d position.

'i t bracket on the slow door has and having a pivotal connection to one link the toggle. Since individual doors often vary in width. link mechanism' ot predetermined pro portions would tail to articular door, or to have a supply ol or brackets havingy various points 'lor corne-ation. it has also been pro- 'o make one of the toggle links, usuly the which is connected to the wall .a ength. This procedure,

te. ustabie inI Serial No. 500,045.

while admissible for' very slight variations in the distance between the side of the door opening;v and the wall plate. is not satisfactory where the variation is relatively large, since varying the length of this toggle link which is connected to the wall bracket will cause one of the doors to reach its extreme position before the other door, and consequently the full extent of the door opening cannot be realized.

It is an object of my present invention to overcome to a large extent the ditliculties above indicated, and to provide means whereby the door control mechanism may be made and assembled at the factory, ready for ap plcation to the doors, with the assurance that when applied said doors will operate properly and will open and close as intended. thereby sa ving greatly in cost oiu manufacture and installation.

nother object is to provide an adjustable mounting` for the abutment end ot the operating` linkae."

Another; object is to provide an adj ustlment or yoiset'Qto compensate for doors of different thickness and position.

A further Objectis to obviate the necessity oit' determining the pivot point on a slow door bracket for each particular installation, and'in place thereof to pr( vidc an adjustable slowdoor bracket, whereby the pivot point on the slow door may be adjusted and the slow door accurately positioned.

The above objects may be accomplished by means oi' the mechanism herein disclosed.

ln the drawings l have shown for illustrative purposes one preferred form ol my invention.

Figure l is a top plan view of a door control embodying` features oi inyinvention and showing a pair of sliding doors in the closed position;

Fig. 2 is a tragn'ientary. side view ol: the parts shown in. Fig. l;

Fig. 3 is an enlarged detail view ot' an improved slow door bracket; and

Fig. 4 is a detail perspective view of a wall plate and adjustable abutment plate.

5 indicates the so called tast77 door of a pair ot' sliding doors. called slow7 door. No means et supportA ing' these doors has been shown, since this type of door and supporting means therefor are well known in the art and need no specific description.

A link 7 is pivotally connected at 8 to the 6 indicates the soy fast door. A second link 9 is pivotally connected at 10 to the slow door, through the medium of arms 26-v-27 later described. 11 is a lever which is pivotally supported from a wall at 12. The link 9 is pivoted to the link 7 at 13 and to the lever 11 at 14.

v 'lhe pivot point 12 for the xed end of the toggle system is adjustably mounted relatively to the supporting wall. In the specific disclosure I have shown al wall plate 15 having apertures 16 to receive meansi'for securing the plate t-o a proper support or wall. 17 indicates an abutment plate. This plate may be provided with means, such as the ears 18, 18, forforming the fixed pivot point 12. In the specific instance shown ears 19 have been provided for attachment of the lower` end of a door closer and check 20. The piston rod of this door closer and check is connected at 21 to an ear on the lever 11.

Suitable means, such as rods 22, 22 extend from the wall plate 15 and pass through suitable, passages in the abutment plate 17.

yThese supporting rods 22 have been shown threaded, and .the abutment plate 17 is held on these rods, as by means of nuts 23, 24 on opposite sides ot the plate and in screw threaded engagement with said rods. It will be seen that by varyingl the positions of the nuts on the rods the abutment plate 17 may be secured in various adjusted positions to and fro for the purpose later described. In the specific instance shown the abutment plate 17 has been shown as supported by two rods, but it should be understood that the number is immaterial so long as the plate is given substantial support.

In the form shown one end ot' the lever 11 is supported in alignment with one of the rods 22, and l have shown au aperture 25 in the'lever to clear the end ot one ot .the rods 22 when the lever is in the uppermost position.

Means for pivoting the slow door to the bracket at l() in the form shown comprises arms 26, 27, coming together at their ends and connected with the link 9, as by means of the pin or bolt 28. A securing plate 29 is provided for-each of the arms and may be secured to the edge of the slow door in any suitable manner, as by means of the screws 30. upporting bars 31 are :tormed integrally wlth or secured in any suitable manner toieach ofthe arms 26, 27, which bars are adjustably (annected to the mounting plates 29, 29 to govern offset. In the form shown the bars 31 pass through suitable apertures in the plates 29, and means, such as the set screws 32, 32, are provided to hold the pins in various positions of adjustment.

It is obvious that if the plates 29 are separated farther apart than shown in Fig. 2 the door section 6 would be moved to the left with respect to the'pivot l0. By this means the position of the door section 6 relatively to the adjacent sections or the casing may be properly adjusted. It will thus be seen that the proper relative positions of the doors 5, 6 may be accurately determined by simply spreading the arms 26, 27 relatively to each other to the proper degree, until the proper positions of the doors have been found. So, also, this arrangement makes it possible to adjust the linkage to doors adapted to different widths 'of openings.

The operation is as follows:

IVhen the toggle is broken, as by means of drawing down on the handle 35, the link mechanism4 lwill assume, in the extreme open-door position, the position shown in dotted lines in Fig. 2, and both doors will be fully drawn back so as to overstand one another. YIt a door-closing spring is provided in the member 20, this spring-will be stressed during the opening movement. If now the doors be released, the spring will draw downwardly on the lever 11 and the doors will be moved back to the closed position shown in yfull lines in Fig. 2.

It will be seen that by the provision of the adjustableabutment plate 17 the complete dom'oj')erating mechanisms may be assembled in the factory, and when installed may be easily adjusted to overcome any slight .errors such as usually found in buildings constructed to receive such door-control apparatus, It will also be seen that the means for adjusting the ,pivot point -on the slow door will permit variations in the sizes of individual doors to be compensated for, which adjustment of the bars 31, 31, Will compensate for differences in offset. It will also he noted that all of. these varieus ad justments may be made without disturbing the effective centers of the toggle linkage.

IVhile I have gone into great detail in disclosing;- specific forms of my invention, I

do not wish to be limited thereto, for obvlously many changes may be made within the scope-ol the invention defined in the appended claims.

I claim:

1. In a. door control for sliding doors, the combination with a tast and slow door, of aI link pivoted tothe tast door, a second link pivoted to the slow door and to said firstmentioned link, and a lever pivoted to; the link on the slow door and to a rigid abutment, resilient means for moving the links 1n 'one direction, and means for adjusting the pivot point onsaid rigid abutment wherey y said link -meehanism will be bodily adjusted to .and fro.

2. In a device of the character described,

link mechanism for attachment to a door, a rigid abutment member connected to said link mechanism, and means'for shifting said rigid abutment member to and fro to various erated by positions for determining the limit or travel ot '5h' door in its closing direct-ion.

i `ter' described, tegeliinli niechanism adapted to be pivcicd to a` door, a rigid abutment member, said toggle mechanism being pivoted to said gid abutnient, and means for adjusting .rigid abutment. member to various positions whereby the limit of 'travel of a door by the. toggle mechanism may be L n a. device of the charac* v.n a device oir' the'character described, mechan' for actuating a sliding door, a. wall plate, a.. rigid abutment plate iounted on said tilted Wall plate, said act-uatinJ nechanism being pivoted to said rigid abutment, and .means for adjusting the rigid y J Cillrelatively to the fixed wall plate 'he l mit of travel ot the door opmechanism may be varied to suit enis conditions in building construc- 5. ln device of the character described, toggle link mechanism for moving two slidi "doors different speeds including i .gid elaitmen member, said mechanism being connecter.. 'to said abutiiient member at one end, and inea-ns for adjusting said abutent member to various positions uf'hereby the limit of movement ot' the doors operated by said mechanism .may be varied at will.

device of the character described, toggle linic mechanism for moving a door, means for securing a pivot to said door, means being adjustable to vary the poon said pivot relatively to said door, inechanism being connected to said and closer mechanism associated with .j aid linli mechanism and cooperating therewith in all ditl'erent positions ot' adjustment of pivot, I

i'. a dei/ice ci the character described,

link mechanism for moving ay door, and an arm to be attached to a door and pivotally connected with said mechanism, said arm being mounted on the door and adjustable to vary the position of said pivotal connection transversely oiz the door.

arm to be attached to a door and pivotally connected with said mechanism",l said arm being mounted on the door and adjustable to vary the position oi said pivotal connection toward and away 'from thc door.

ln a device of the character described, means lor actuating a door, and a pair oi` arms on said door and pivotally connected to said docr-:wtuating inechanisrnusaid arms being adjustable to vary the position of the pivotal connection oie said arnis to the mechanism in a direction transverse ot the door.

l0. ln a device ci Ithe character described,

a` device ot the character described,v link mechanism for moving a door, and anv means for actuating a door, and a pair of arms on said door and pivotally connected to said door-actiuiting mechanism. said arns being adjustable to vary the position ot the pivotal connection of said arms to the mechanism ina direction toward and away from the door.

1l. As an article of manufacture, an abutment member for connection to a door-operating mechanism, a support for said member, and means ior adjusting said abutment member relatively to said support.

l2. As an article of manufacture, an abutment for a door-operating mechanism, comprising a wall plate, an abutment plate connected to said wall plate, and means for varying the position of said abutment plate relatively to said Wall plate.

i3. bis an article of manufacture, an abutment mechanism for door-actuating means, comprising an abutment plate having means for pivotal attachment to a door-actuating mechanism and having means for pivotally .connecting a door closer, and means for ad- Ijusting said abutment plate relatively to its support.

14. As an article of manufacture, a Wall plate, an abutment plate, and means for adjustably securing said abutment plate in various adjusted positions relatively to said wall plate, said abutment plate having means for attachment to a door-actuating mechanism and to a doorcheck.

15. As an article of manufacture, a bracket tor pivotal attachment to a door-actuating mechanism, comprising an arm for attachment to a door, and means for adjusting said arm relatively to said door to vitry the position of said pivotal attachment relatively to said door.

16. As an article'of manufacture, a bracket for attachment to a door and for attachment to door-actuating mechanism, comprising a pair of arms, and means for attaching said arms to a door, said means being adjustable relatively to said arms.

17. As an article of manufacture, a bracket for attachment to a door and for pivotal connection to door-actuating mechanism. comprising an arm, a plate for attachment to a door, sind arm being adjustably connected to said plate, and means for securing said arm in various positions'of adjustnient relatively to said plate.

18. As an article ot inanut'acture,l an arm for pivotal connection to door-actuating mechanism, a plate 'for attachment to a door, means connecting said arm and said door, and mcans for holding said connecting means in various positions ot adjustment whereby the arm and plate may be adjusted relatively to each other. 

